Notes On Schematic Diagram; Types Of Transistor - Sharp QT-CD161 Service Manual

• Resistor:
To differentiate the units of resistors, the symbol as K and M
are used: the symbol K means 1000 ohm and the symbol M
means 1000 kohm and the resistor without any symbol is an
ohm resistor. The resistor designated "Fusible" is a fuse type
resistor
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic capacitor,
the expression "capacitance/withstand voltage" is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
• The indicated voltage in each section is the one measured by
Digital Multimeter between such a section and the chassis
with no signal given.
REF. NO DESCRIPTION
SW102 RECORD/PLAYBACK
SW201 FUNCTION/POWER
SW202 X-BASS
SW501 TUNER UP
SW502 TUNER DOWN
SW503 BAND

NOTES ON SCHEMATIC DIAGRAM

POSITION
PLAYBACK
TAPE—TUNER— CD/
OFF—ON
OFF—ON
OFF—ON
OFF—ON
OFF—ON
FRONT
VIEW
E C B
(S)(G)(D)
(1) (2) (3)
KTA1266 GR
KTA1273 Y
KTC3194 Y
KTC3199 GR
KTC8050 D
KRA102 M
KRA109 M
KRC104 M
KRC107 M
Figure 9 TYPES OF TRANSISTOR
– 9 –
1. Tuner
( ): AM mode
Marking except for ( ): FM mode
2. CD
( ): Play mode
Marking except for ( ): Stop state
3. Deck section
( ): Record mode
Marking except for ( ): Playback mode
Display / Control section:
( ): Active state
Marking except for ( ): CD Function mode at stop state
• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
• Parts marked with " " (
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
REF. NO DESCRIPTION
SW504 MEMORY
SW505 PRESET DOWN
SW506 PRESET UP
SW507 CD LID OPEN/CLOSE
SW601 TAPE MAIN
SW702 PICKUP IN
QT-CD161/141
) are important for
POSITION
OFF—ON
OFF—ON
OFF—ON
OFF—ON
OFF—ON
OFF—ON